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Tom Lane d7153c5fad Fix best_inner_indexscan to return both the cheapest-total-cost and 
cheapest-startup-cost innerjoin indexscans, and make joinpath.c consider
both of these (when different) as the inside of a nestloop join.  The
original design was based on the assumption that indexscan paths always
have negligible startup cost, and so total cost is the only important
figure of merit; an assumption that's obviously broken by bitmap
indexscans.  This oversight could lead to choosing poor plans in cases
where fast-start behavior is more important than total cost, such as
LIMIT and IN queries.  8.1-vintage brain fade exposed by an example from
Chuck D.
2007-05-22 01:40:33 +00:00
config Better solution to the tr problem: use sed instead. Per Martijn and Andrew. 2006-11-30 22:21:24 +00:00
contrib Add CVS comment for recent commit: 2007-05-17 21:43:19 +00:00
doc XPath fixes: 2007-05-21 17:10:29 +00:00
src Fix best_inner_indexscan to return both the cheapest-total-cost and 2007-05-22 01:40:33 +00:00
aclocal.m4
configure tas() support for Renesas' M32R processor. Kazuhiro Inaoka 2007-05-04 15:20:52 +00:00
configure.in tas() support for Renesas' M32R processor. Kazuhiro Inaoka 2007-05-04 15:20:52 +00:00
COPYRIGHT Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
GNUmakefile.in Replace useless uses of := by = in makefiles. 2007-02-09 15:56:00 +00:00
Makefile Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
README Fix spectacular misspellings of procedural language names 2006-07-24 16:55:59 +00:00
README.CVS

README 

PostgreSQL Database Management System
=====================================
  
This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces including some of the more
common listed below:

C++ - http://thaiopensource.org/development/libpqxx/
JDBC - http://jdbc.postgresql.org
ODBC - http://odbc.postgresql.org
Perl - http://search.cpan.org/~dbdpg/
PHP - http://www.php.net
Python - http://www.initd.org/
Ruby - http://ruby.scripting.ca/postgres/

Other language binding are available from a variety of contributing
parties.

PostgreSQL also has a great number of procedural languages available,
a short but not complete list is below:

PL/pgSQL - included in PostgreSQL source distribution
PL/Perl - included in PostgreSQL source distribution
PL/PHP - http://projects.commandprompt.com/projects/public/plphp
PL/Python - included in PostgreSQL source distribution
PL/Java - http://gborg.postgresql.org/project/pljava/projdisplay.php
PL/Tcl - included in PostgreSQL source distribution

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.